发明授权
- 专利标题： Method for producing paper, paperboard and cardboard having high dry strength
- 专利标题（中）： 生产干燥强度高的纸，纸板和纸板的方法
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申请号： US14105259申请日： 2013-12-13
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公开(公告)号： US09206551B2公开(公告)日： 2015-12-08
- 发明人: Anton Esser
- 申请人： BASF SE
- 申请人地址： DE Ludwigshafen
- 专利权人： BASF SE
- 当前专利权人： BASF SE
- 当前专利权人地址： DE Ludwigshafen
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： EP09173497 20091020
- 主分类号： D21H17/25
- IPC分类号： D21H17/25 ; D21H17/45 ; D21H21/18 ; D21H17/37 ; D21H17/42 ; D21H17/44
摘要：
Process for the production of paper, board and cardboard having high dry strength by addition of an aqueous composition comprising a nanocellulose and at least one polymer selected from the group consisting of the anionic polymers and water-soluble cationic polymers, draining of the paper stock and drying of the paper products.
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